1. white foam on the crests of waves, especially in windy conditions
Usage: nautical; plural form

Examples

• The strong wind created whitecaps across the entire lake.
• Sailors could see whitecaps forming as the storm approached.
• The ocean was rough with whitecaps visible everywhere.
• Small boats should avoid going out when there are whitecaps.
• The whitecaps made the water look choppy and dangerous.
• From the shore, we watched the whitecaps roll toward the beach.